KR20130031344A - Construction time selection device and construction time selection method - Google Patents

Abstract

It aims at specifying the appropriate time to perform the construction with respect to the wind power generator 12. The wind power generation system 10 is used at a time when a failure occurs in the main part, which is predicted based on the time change of the detection signal output from the state detection device for detecting the state of the main part provided in the wind power generator 12. Therefore, the facility management apparatus 20 determines the time of performing replacement | construction or repair work according to the failure of a main component. And the construction plan apparatus 22 is construction whose average wind speed of the place where the wind power generator 12 is installed is more than the predetermined threshold which cannot perform construction of a main part on the basis of the determined time. Based on stopping rate, we choose time to perform construction on main parts.

Description

Construction time selection device and construction time selection method {CONSTRUCTION TIME SELECTION DEVICE AND CONSTRUCTION TIME SELECTION METHOD}

The present invention relates to a construction time selection device and a construction time selection method.

If a major component fails in a wind turbine, such as bearings, gearboxes, or generators used in the wind turbine, the wind turbine will be stopped until the completion of construction (maintenance work) to replace or repair the failed component. As a result, electricity sales revenue is lowered as a result.

In addition, when a part is broken down and a procedure of replacing or repairing the part is performed, the stopping period of the wind power generator required from failure to recovery is longer, resulting in a lower electricity sales income.

For the purpose of solving this problem, Patent Document 1 discloses, as a monitoring device for a wind power generation facility, based on the operating results of the wind power generation facility acquired by the operation state monitoring means and the maintenance conditions of the wind power generation facility set in advance. Technology to shorten the stopping period of the wind turbine generator by determining whether the maintenance state reaches the required operation amount in advance, by predicting the failure of the component in advance, and maintaining the wind turbine according to the prediction result. This is described.

Patent Document 1: Japanese Patent Application Laid-Open No. 2006-342766

The main components of the wind power generator are mainly provided in the nacelle provided at the upper end of the posts provided on the foundation and in the rotor head provided in the nacelle, that is, at a high place. Therefore, when carrying out construction which repairs or replace | exchanges the parts of a wind turbine, there exists a necessity of the operation in the high place using a crane installation etc.

However, since the wind turbine is a device for converting wind into electric power, it is installed in a location where wind is easy to blow. In addition, as described above, the main components of the wind turbine are provided at a high place, i.e., a position exposed to the wind.

Therefore, under the influence of wind, for example, crane facilities or the like may not be available, and depending on the season, there may be a date and time during which construction cannot be performed, and the construction period is long, and thus wind power In some cases, the stoppage period of the power generator is longer.

Moreover, when the construction period with respect to a wind power generator becomes long, the cost (rental cost of a crane installation), etc. for using a crane installation etc. may increase, for example, and construction cost may increase with this.

This invention is made | formed in view of such a situation, and an object of this invention is to provide the construction time selection apparatus and construction time selection method which can identify the appropriate time to perform construction with respect to a wind power generator.

In order to solve the said subject, the construction time selection apparatus and construction time selection method of this invention employ | adopt the following means.

That is, the construction time selection device according to the first aspect of the present invention is characterized in that a failure occurs in the component, which is predicted based on the time change of the detection signal output from the detection means for detecting the state of the component included in the wind power generator. Determination means for determining when to perform replacement or repair work according to the failure of the parts according to the time, and a predetermined threshold value at which the wind speed at the place where the wind power generator is installed cannot perform work on the parts. The storage means which stored construction stop information which showed the above-mentioned ratio for every predetermined number of days and every predetermined number of hours, and the said construction stop information represented by the construction stop information stored in the said storage means on the basis of the time determined by the said determination means. On the basis of the ratio, selection means for selecting when to perform construction on the parts is provided.

According to the construction time selection device according to the first aspect, a failure occurs in the corresponding part predicted by the determination means based on a time change of the detection signal output from the detection means for detecting the state of the part provided in the wind power generator. According to the timing at which it occurs, it is determined when to perform replacement or repair work due to the failure of the parts.

The storage means stores construction stop information indicating the rate at which the wind speed at the place where the wind power generator is installed is equal to or larger than a predetermined threshold value at which the construction of parts cannot be performed, every predetermined number of days and every predetermined number of hours. In addition, every predetermined day is for example every week or every month, and every predetermined time is for example every 1 hour or every 2 hours of a day.

The wind power generator is installed in a location where wind is easy to blow, and the main components of the wind power generator are provided at a high place, that is, a position exposed to the wind. For this reason, construction may not be possible depending on the wind speed.

Therefore, the selection means selects a time to construct the parts based on the ratio indicated by the construction stop information based on the time determined by the determination means.

Therefore, since the construction time selection device according to the first aspect can select a time when the influence of the wind is small as the time for construction work, it is possible to specify an appropriate time for construction work on the wind power generator.

In the construction time selection device according to the first aspect, the construction means is calculated based on a ratio indicated by the construction stop information among a plurality of construction plans in which the selection means is determined based on the time determined by the determination means. It is good also as a structure which selects the construction plan whose period becomes below a predetermined value.

According to this structure, since the construction period computed based on the ratio represented by the construction stop information is selected from the several construction plans set based on the time determined by the determination means, the construction plan is selected, We can specify time when we can perform more efficient construction. Moreover, as a construction period below a predetermined value, it is the construction period which becomes a minimum value among a plurality of construction plans most preferably.

The construction time selection device according to the first aspect includes calculation means for calculating a required cost for each of a plurality of construction plans established based on the time determined by the determination means, and the selection means includes a plurality of It is good also as a structure which selects the construction plan in which the cost computed by the said calculation means becomes below a predetermined value among the said construction plans.

According to this structure, since the cost required for each construction plan is calculated, and the construction plan whose cost becomes below a predetermined value is selected, it is possible to specify the time when more efficient construction can be performed financially. Moreover, as cost below a predetermined value, Most preferably, it is the cost used as the minimum value of several construction plans.

The construction time selection device according to the first aspect may be configured to include a loss caused by the wind power generator being stopped in the cost calculated by the calculation means.

According to this configuration, since the damages incurred by stopping the wind power generator are included in the cost of the construction, it is possible to specify the time when the construction can be carried out with more efficient money.

The construction time selection method according to the second aspect of the present invention is a time when a failure occurs in a corresponding part, which is predicted based on a time change of a detection signal output from a detection means for detecting a part state provided in the wind power generator. Therefore, on the basis of the first step of determining when to perform replacement or repair work due to the failure of the parts, and the time determined in the first step, the wind speed at the place where the wind power generator is installed, Selecting when to perform construction on the component based on the ratio represented by construction stop information indicated every predetermined number of days and every predetermined number of times that the ratio becomes greater than or equal to a predetermined threshold value for which the construction of the component cannot be performed. It includes a second process.

According to the construction time selection method which concerns on 2nd aspect, since the time when there is little influence of wind can be selected as a time to perform construction, the appropriate time to perform construction with respect to a wind power generator can be specified.

According to the present invention, there is an excellent effect that it is possible to specify an appropriate time for constructing a wind turbine.

1 is an overall configuration diagram of a wind power generation system according to a first embodiment of the present invention.
It is a schematic diagram which shows the state detection apparatus which detects the state of the main components with which the wind turbine generator which concerns on 1st Embodiment of this invention is equipped.
3 is a flowchart showing the flow of construction planning development processing according to the first embodiment of the present invention.
Fig.4 (a) is a figure which is necessary for description of the diagnostic method of the main component state performed by the state monitoring apparatus which concerns on 1st Embodiment of this invention, and shows the detection result of a vibration sensor.
Fig. 4B is a diagram necessary for explaining the method for diagnosing the state of major parts performed in the state monitoring device according to the first embodiment of the present invention, and shows the prediction of the failure date and time obtained from the detection result of the vibration sensor.
Fig. 4C is a diagram necessary for explaining the method for diagnosing the state of major parts performed in the state monitoring device according to the first embodiment of the present invention, and shows the prediction of the failure date and time obtained from the detection result of the metal scan.
It is a figure which shows the necessity of the construction of the main component performed by the lifetime prediction apparatus which concerns on 1st Embodiment of this invention.
It is a flowchart which shows the content of the construction time selection program performed by the construction planning apparatus which concerns on 1st Embodiment of this invention.
7 is a schematic diagram showing the contents of a weather forecast database according to the first embodiment of the present invention.
8 is a schematic diagram showing the contents of a construction information database according to the first embodiment of the present invention.
It is a schematic diagram which shows the construction plan devised by the construction planning apparatus which concerns on 1st Embodiment of this invention.

EMBODIMENT OF THE INVENTION Below, one Embodiment of the construction time selection apparatus which concerns on this invention, and a construction time selection method is demonstrated with reference to drawings.

(First Embodiment)

EMBODIMENT OF THE INVENTION Hereinafter, 1st Embodiment of this invention is described using FIG.

The wind power generation system 10 according to the first embodiment includes a plurality of sites 14A, 14B, 14C provided with a plurality of wind power generation devices 12, and a remote monitoring device 16 as an information processing device, and a state. The monitoring device 18, the facility management device 20, and the construction planning device 22 are provided. In addition, in the following description, when distinguishing each site 14, any one of A-B is attached | subjected to the end of the code | symbol, and A-B is abbreviate | omitted when each site 14 is not distinguished.

The wind power generator 12 is a device for converting wind power into electric power. The data indicating the state of the main parts included in the wind power generator 12 (hereinafter referred to as “part state data”) is a communication line 24. (For example, via the Internet or a dedicated line) to the remote monitoring device 16.

FIG. 2: is a schematic diagram which shows the state detection apparatus which detects the state of the main components with which the wind power generator 12 is equipped.

The wind power generator 12 shown in FIG. 2 has the nacelle 40 provided in the upper end of the support | pillar provided on a base, and is rotatable about the substantially horizontal axis line to the nacelle 40. It has the rotor head 42 provided.

The rotor head 42 is attached to the rotor head 42 with a plurality of blades 44 (three in the first embodiment) radially around the rotation axis thereof. Thereby, the force of the wind which touched the blade | wing 44 from the rotation axis direction of the rotor head 42 is converted into the power which rotates the rotor head 42 around a rotation axis. Then, power is transmitted to the generator 50 via the main shaft 48 that rotates as the rotor head 42 rotates, and the speed increaser 46 that increases the rotation speed of the main shaft 48, and the generator 50. Power is converted into electric power by

In addition, the main shaft 48 is provided with a main bearing 52 that supports the main shaft 48. Further, a bearing 54A is provided at the low speed end of the speed increaser 46, and a bearing 54B is provided at the high speed end of the speed increaser 46.

In addition, the nacelle 40 is provided with an oil lubrication device 56 for supplying and lubricating lubricating oil for various bearings.

In addition, in this 1st Embodiment, although a main component is demonstrated as bearing 54A, 54B and the oil lubrication apparatus 56, this is an example and you may make another component a main component.

As a state detection apparatus which detects the state of main components which concerns on this 1st Embodiment, as an example, the vibration sensor 58A is provided with respect to the bearing 54A of the gearbox 46, and the bearing of the gearbox 46 ( Vibration sensor 58B is provided with respect to 54B (for example, measurement frequency of 1 kHz each 3 places), and the metal scan (wear particle detection apparatus) 60 is provided with respect to the oil lubrication apparatus 56. FIG.

In addition, the vibration sensors 58A and 58B detect vibration generated in the bearings 54A and 54B, and the metal scan 60 detects the amount of wear particles in the oil lubrication device 56.

The vibration sensors 58A, 58B and the metal scan 60 are controlled by the data collection device 62.

Specifically, the data collection device 62 operates the vibration sensors 58A and 58B and the metal scan 60 at predetermined intervals (for example, once a day for about 5 minutes), and the vibration sensor ( 58A and 58B and input of detection signals from the metal scan 60 are accepted. When the detection signal is input, the data collection device 62 performs analysis based on the detection signal, and as the part state data, via the communication device 64 and the communication line (for example, the Internet), the remote monitoring device ( 16). In addition, the data collection device 62 and the communication device 64 are provided, for example in the nacelle 40 or in the prop.

The remote monitoring device 16 includes a storage device 70 such as a hard disk drive (HDD), for example, and time-series the part state data transmitted from the data collection device 62 to the storage device 70. In addition, the remote monitoring database shown in tabular form is stored for every wind turbine 12 and main components.

The state monitoring device 18 diagnoses the state of the main parts included in the wind power generator 12 based on the contents of the remote monitoring database stored in the storage device 70 of the remote monitoring device 16, The storage device 72 stores a state monitoring database indicating a diagnosis result for each major component. In addition, the diagnosis of the state of a main part is output from the state detection apparatus (for example, the vibration sensor 58A, 58B and the metal scan 60) which detects the state of the main part with which the wind power generator 12 is equipped. Based on the time variation of the detection signal, it is to predict when a major component will fail.

The facility management apparatus 20 stores the parts construction database and the life prediction database in the storage device 74.

The parts construction database has shown the time when the main parts were replaced or repaired according to the trouble which occurred for each main part, for every site and every main part.

The life prediction database represents a prediction equation for predicting the rate at which failure of each major part occurs calculated based on the contents of the parts construction database.

And the facility management apparatus 20 determines the time to perform replacement | exchange or repair work according to the failure of a main component from the diagnostic result of the main components transmitted from the state monitoring apparatus 18, and the prediction formula shown in a life prediction database. Determine.

The construction planning device 22 stores a weather information database, a construction information database, a construction cost database, and an LD database in the storage device 76.

The meteorological information database indicates, for every predetermined number of days and every predetermined number of times, the rate at which the wind speed at the place where the wind power generator 12 is installed is equal to or larger than a predetermined threshold at which construction of main parts cannot be performed.

The construction information database shows the process, date, number of people, work restrictions, etc. required for the construction of major components for each major component.

The construction cost database represents the data necessary for calculating the cost of construction performed on the main parts.

The LD database represents a liquidated damage (LD) unit price, etc., generated when the supply of electric power is stopped, which is determined between the electric business owner supplying electric power generated by the wind turbine 12.

And the construction plan apparatus 22 is based on the determination result transmitted from the facility management apparatus 20, and a main part which needs construction based on a meteorological information database, a construction information database, a construction cost database, and an LD database. We choose time to perform construction and make a construction plan.

Next, the flow of the construction planning development process by the wind power generation system 10 which concerns on this 1st Embodiment is demonstrated with reference to FIG.

In step 100, when the data collection device 62 is timing to collect data from the state detection devices (for example, the vibration sensors 58A and 58B and the metal scan 60), the detection signal from the state detection device is received. It receives and transmits the part state data obtained by this detection to the remote monitoring device 16 via the communication line 24.

In the next step 102, the remote monitoring device 16 stores the received part state data in the HDD 70 by adding the received part state data to the remote monitoring database for each of the wind power generator 12 and the main parts.

In following step 104, the state monitoring apparatus 18 diagnoses the state of the main components of the wind power generator 12 based on the content of the remote monitoring database.

Here, a description will be given of a method for diagnosing the state of major parts performed by the state monitoring device 18.

For example, the state monitoring device 18 rotates from the part state data based on the detection signal output from the vibration sensors 58A and 58B for detecting the vibrations of the bearings 54A and 54B of the speed increaser 46. The amplitude of the natural frequency corresponding to each time (rotational speed N of the low speed stage, 2N of the high speed stage) is calculated | required (refer FIG. 4 (a)).

And the state monitoring apparatus 18 calculates the predicted value of the amplitude after time passes further from the time change of the actual value of the amplitude for every rotation speed.

Moreover, the state monitoring apparatus 18 derives the prediction timing of the failure of the speed increaser 46 which is temporary, and the estimated value of the calculated amplitude exceeds the predetermined threshold of failure (refer FIG. 4 (b)). In addition, a predictive value is computed by the approximation formula obtained, for example from a measured value. In addition, a plurality of thresholds of failure are determined in stages.

In addition, for example, the state monitoring apparatus 18 is based on the time change of the wear particle detection amount which is component state data based on the detection signal output from the metal scan 60 which detects the wear particle amount in the oil lubrication apparatus 56. , The predicted value of the wear particle detection amount after time passes further is computed.

Moreover, the state monitoring apparatus 18 derives the prediction timing of the failure of the oil lubrication apparatus 56 which is the date and time when the estimated value of the calculated wear particle detection amount exceeds the predetermined threshold of failure (refer FIG. 4 (c)). .

And the state monitoring apparatus 18 adds the time change and the prediction result of the measured value shown to FIG.4 (b), FIG.4 (c) to the state monitoring database, and also derived each main part. The predicted time of each failure is transmitted to the facility management apparatus 20.

In the next step 106, the facility management apparatus 20 constructs the replacement or repair according to the failure of the main parts from the diagnostic results of the main parts transmitted from the state monitoring device 18 and the prediction formula shown in the life prediction database. Determine when to perform

Here, the determination method of the time when the construction of the main parts performed by the facility management apparatus 20 is performed is demonstrated.

In addition, whenever the time when construction (repair or exchange) was performed about the main parts of the wind power generator 12 is input, the facility management apparatus 20 adds the said time to a parts construction database, and the added time is Each site 14 and every major component is managed. In addition, the input of the time when construction (repair or exchange) was performed about the main parts of the wind power generator 12 is input by an operator via a keyboard etc., for example.

The facility management apparatus 20 calculates the time change of the cumulative failure rate (ratio of failure) for each major component based on the contents of the parts construction database stored in the storage device 74.

The performance value of a cumulative failure rate is computed by following formula (1). Incidentally, the performance value of the cumulative failure rate is calculated for each major component of each site 14.

For example, a total of 120 gearboxes 46 at the site 14A, and 10 cumulative failures from 2008 (operation start year) to 2010 will be 8.3%. .

And the facility management apparatus 20 predicts the cumulative failure rate after time passes further based on the performance value of an annual cumulative failure rate.

In order to predict the cumulative failure rate, as an example, an approximation formula of the performance value of the cumulative failure rate is used. As this approximation formula, the Weibull approximation formula shown by following formula (2) is used, for example.

In formula (2), t represents a year, a and b are parameters, and by changing the parameter, an approximation equation of the cumulative failure rate is obtained, and the cumulative failure rate is predicted from the approximation equation. The cumulative failure rate predicted for each major part is added to the life prediction database.

FIG. 5 is a diagram showing the necessity of construction of major parts performed in the facility management apparatus 20 based on the approximation formula of the cumulative failure rate.

Moreover, the facility management apparatus 20 indexes soundness from the diagnosis result of the main component transmitted from the state monitoring apparatus 18, and applies it to the prediction time of a failure (for example, the years of FIG. 5 are 0-15. It is set as the year, and the health is 0 to 100%, for example, the current is 7 years, the health is 30%, and the health is A, and the health is 80%.

As shown in Fig. 5, when the diagnosis result indicates a failure in the past than the present, and is larger than the cumulative failure rate represented by the approximation (in the case of diagnosis result A), the corresponding main parts may have already failed. It is judged that construction is necessary immediately because there is.

In addition, when the diagnosis result indicates a failure in the future and the diagnosis result is below the threshold value (in the case of diagnosis result B), since the corresponding main parts are considered to be unlikely to fail, the construction of the corresponding main parts is suspended. It is determined.

On the other hand, when the diagnostic result indicates a failure in the future and the diagnostic result exceeds the threshold (in the case of the diagnosis result C), it can be considered that the corresponding main part is likely to fail. Therefore, it is determined that the prediction time of the failure obtained by the diagnosis result about the said main part is a time when the construction of the said main part is performed. The time to perform construction as a determination result becomes time of a reference | standard (henceforth "standard construction time") in devising a construction plan as mentioned later.

In addition, the said threshold value is predetermined for every main component, and is managed by the life prediction database.

In the next step 108, it is determined by the facility management apparatus 20 whether there is a main part (hereinafter referred to as "necessary construction part") that needs to be constructed, and in the case of affirmative determination, the process proceeds to step 110. In the case of a negative determination, the process ends.

The necessary construction parts mentioned here are the main parts shown by the diagnosis result C of FIG. 5, and the main parts which need to perform construction immediately as shown by the diagnosis result A are notified separately.

On the other hand, the main parts shown by the diagnosis result B are not constructed. Therefore, when the predicted value computed by the state monitoring apparatus 18 reached the threshold of the next step among the some threshold value, this main component will perform construction work again by the facility management apparatus 20 again. The determination of is made.

And if it transfers to step 110, ie, if there is a required construction part, the facility management apparatus 20 will transmit the data about a required construction part to the construction planning apparatus 22 with a reference construction time.

In step 110, the construction planning apparatus 22 performs the construction time selection process which selects the time when the construction of the required construction parts is performed.

FIG. 6 is a flowchart showing the flow of processing of the construction time selection program executed by the construction planning device 22 when the construction time selection process is performed, and the construction time selection program is, for example, the storage device 76. It is stored in advance in the predetermined area.

First, in step 200, the construction plan is formulated.

The construction plan is formulated based on the contents of the weather information database stored in the storage device 76.

7 is a schematic diagram illustrating an example of the contents of a weather information database.

As mentioned above, the meteorological information database is a ratio (hereinafter, "construction stop rate") in which the wind speed of the place where the wind power generator 12 is installed becomes more than a predetermined threshold which cannot perform construction of necessary construction parts. ) Is shown every predetermined day and every predetermined time.

Moreover, in this 1st Embodiment, although the wind speed of the place where the wind power generator 12 is installed is made into the average wind speed, it is not limited to this, You may make it the maximum wind speed, For example, a predetermined ratio (the For example, 20%) may be a different wind speed, such as a slow wind speed or a fast wind speed.

In addition, in this 1st Embodiment, as shown in FIG. 7, although predetermined days are made into January and predetermined time is made into 4 hours, it is not limited to this, For example, 5 days or 10 days, for example, Alternatively, the interval may be one week, two weeks, or the like, or the predetermined number of hours may be, for example, 0.5 hour, or 1 hour, 2 hours, or the like.

Moreover, the construction stop rate calculates the average wind speed for every month and time zone from the wind speed data of the neighborhood of each site 14, for example, and calculates the ratio which exceeds the wind speed that an average wind speed becomes a predetermined threshold value. Is generated by Moreover, since average wind speed is updated suitably every time new wind speed data is input to the construction planning apparatus 22, a construction stop ratio is also updated accordingly.

And in construction period, if necessary construction part is PN, construction month is m, time zone is t, construction stop ratio is P (m, t), and standard construction period is TC0 (PN), It is computed from following formula (3).

The construction stop ratio P (m, t) is read from the weather information database, and since the standard construction period TC0 (PN) is stored in the storage device 76 in advance for each main part, it is read out from the storage device 76. .

The example of FIG. 7 shows that the construction suspension rate from February to April is high between 8:00 and 16:00 which is the time zone when construction work is performed, while the construction suspension rate from June to September is low, and the example of FIG. In (3) formula, construction suspension period is long from February to April, and construction suspension period is calculated shortly from June to September.

In addition, a concrete construction plan is formulated based on the construction information database which showed the process, date, number of people, work restrictions, etc. which are needed when carrying out construction with respect to necessary construction parts for each main component.

8 is a schematic diagram illustrating an example of the contents of a construction information database, and illustrates a standard process required for performing construction.

Standard process Y represents a warehouse operation, there is no work restriction, standard process P represents a ground operation, and there exists a work restriction that a work cannot be performed unless the wind speed is 10 m / sec or less. In addition, the standard process C is a work using a crane, and there is a work restriction that the work cannot be performed unless the wind speed is 5 m / sec or less, and the standard process R is a withdrawal work and a drive recovery work. Only when the centering work which is the work to be performed is performed, there is a work restriction that the work cannot be performed unless the wind speed is 5 m / sec or less. In addition, in this 1st Embodiment, although the work limitation, especially the wind speed limitation differs for every standard process, you may make it the same as the limitation of the wind speed.

And the combination of the standard processes for constructing each main part is predetermined. 9 is a schematic diagram illustrating an example of a construction plan devised by the construction planning device 22.

As shown in FIG. 9, in the construction plan, a process is determined for each major part in units of days. Moreover, the number added to the rear end of the alphabet which shows a standard process has shown the required half number (an integer multiple of the half number shown in FIG. 8).

In addition, a construction plan for the required construction parts is determined in plural on the basis of the reference construction time input from the facility management apparatus 20. For example, in this 1st embodiment, although a construction plan is devised every month within 1 year before a standard construction time, it is not limited to this, and every month within a half year before a standard construction time is not limited to this. You may devise a construction plan or devise a construction plan every month within half a year before and after the standard construction time.

In addition, the construction plan may be formulated using another program for devising the construction plan, or may be formulated by the operator himself.

In following step 202, the construction cost which is the cost (amount of money) required for construction is computed for the several construction plan which it devised.

An example of the method of calculating construction cost is demonstrated below.

In this 1st Embodiment, as shown to following (4) Formula, the cost (henceforth "crane cost") required for a crane CC (Tc) and the cost (henceforth "worker" Cost ") Calculates construction cost C (PN) from the sum of CP (Tp). In addition, Tc is a restraint time of a crane, and Tp is a restraint time of a part.

That is, in this 1st Embodiment, a crane cost is calculated according to the restraint time of a crane, and a labor cost is computed according to the restraint time of a laborer.

And the restraint time Tc of a crane is computed from following formula (5).

TC (PN) is the construction period as described above, TMc (x, y) is the travel time for moving the crane from the x position to the y position in the site 14, and TMSc (S) is the crane from another place. The travel time for moving.

In addition, the restraint time Tp of a pull part is computed from following formula (6).

TMSp (S) is a travel time for moving the worker from another place.

In addition, the functions for calculating the crane cost CC (Tc), the labor cost CP (Tp), the travel time TMc (x, y), the travel time TMSc (S), and the travel time TMSp (S) are managed in the construction cost database. have.

In next step 204, contract damages (LD) are calculated for each of a plurality of construction plans that were devised. Contract damages are calculated from the following formula (7).

T in Formula (7) is a stop period of the wind power generator 12, and is the same period as the construction period or longer than the construction period, and the operation rate guarantee value is 90 to 99% as an example. The LD unit price is also read from the LD database.

In following step 206, the total cost Ctotal is computed from the sum of construction cost C (PN) and contract damages compensation LD (T) as shown by following formula (8) for every several construction plan which it devised.

In the next step 208, the construction time is selected by selecting the construction plan actually performed from a plurality of construction plans, and this program is complete | finished. Specifically, among the plurality of construction plans, construction plans are selected in which the total cost calculated in step 206 is equal to or less than a predetermined value.

In the construction time selection processing according to the first embodiment, the construction plan for which the total cost becomes the minimum value among a plurality of construction plans is selected. However, it is not limited to this, For example, you may select the construction plan which starts at the earliest time, or the construction plan which is closest to a reference construction time among the construction plans whose total cost becomes below a predetermined cost.

In following step 210, the construction plan selected by step 208 is output, and this program is complete | finished. As a specific example of the output method of the selected construction plan, the display of the selected construction plan by the image display apparatus with which the construction planning apparatus 22 was equipped, the output of the paper which recorded the construction plan by the printing apparatus, and the storage device 76 Storage of data indicating the selected construction plan;

As explained above, the wind power generation system 10 which concerns on this 1st Embodiment is based on the time change of the detection signal output from the state detection apparatus which detects the state of the main components with which the wind power generator 12 is equipped. The facility management apparatus 20 determines when to perform replacement | construction or repair work according to the failure of a main component, according to the predicted time when the main component has a failure. And on the basis of the determined time, the construction planning apparatus 22 becomes the average wind speed of the place where the wind power generator 12 is installed becomes more than the predetermined threshold which cannot carry out construction of necessary construction parts. Based on construction suspension rate, we choose time to perform construction for necessary construction parts.

Therefore, since the wind power generation system 10 which concerns on this 1st Embodiment can select the time when there is little influence of wind as a time to perform construction, it is possible to select the suitable time to perform the construction about the wind power generator 12. It can be specified.

Moreover, since the wind power generation system 10 which concerns on this 1st embodiment calculates the total cost required for every construction plan, and selects the construction plan whose total cost becomes below a predetermined value, it is more financially efficient. We can specify time when we can perform construction.

The wind power generation system 10 according to the first embodiment includes contract damages caused by the wind power generation device 12 being stopped in the total cost of the construction. You can specify when you can do it.

(Second Embodiment)

Hereinafter, a second embodiment of the present invention will be described.

In addition, since the structure of the wind power generation system 10 which concerns on this 2nd Embodiment is the same as that of the wind power generation system 10 which concerns on 1st Embodiment shown in FIG. 1, it abbreviate | omits description.

In the first embodiment, in the construction of the necessary construction parts, the movement of the crane between the sites 14 and the movement of the labor are not considered. So, in this 2nd Embodiment, the construction plan is devised in consideration of the movement and distribution of the crane and the laborer between the sites 14.

For example, in this 2nd Embodiment, the construction planning apparatus 22 devises and selects a construction plan so that a crane and a worker may move between neighboring sites 14, and moving cost will fall. In addition, as another example, the construction planning apparatus 22 devises and selects a construction plan so that the construction of the same necessary construction parts may not be performed at the same time at different sites 14.

As mentioned above, although this invention was demonstrated using said each embodiment, the technical scope of this invention is not limited to the range of description in the said embodiment. Various changes or improvement can be added to each said embodiment in the range which does not deviate from the summary of invention, and the form which added the said change or improvement is also included in the technical scope of this invention.

For example, in each said embodiment, although the case where the construction cost which total cost becomes a predetermined value or less was demonstrated in the construction plan selection process, this invention is not limited to this, Comprising of contract damages It is good also as a form which selects the construction plan whose construction cost becomes below a predetermined value, without calculating.

In addition, in the construction plan selection processing, without calculating the construction cost and contract damages compensation, it was calculated based on the construction suspension rate represented by the weather forecast information database from plural construction plans devised based on the reference construction time The construction plan in which the construction period is less than or equal to the predetermined value may be selected. Thereby, the time when a more efficient construction can be performed can be specified.

In addition, in the case of this form, as a construction period below a predetermined value, the construction plan in which a construction period becomes a minimum value among a plurality of construction plans may be selected, for example, in the construction plan in which a construction period becomes below a preset construction period. Construction plan to be started at earliest time or construction plan that is closest to standard construction time may be selected.

In addition, although the said each embodiment demonstrated the form which makes the remote monitoring apparatus 16, the state monitoring apparatus 18, the facility management apparatus 20, and the construction plan apparatus 22 into different information processing apparatuses, respectively, This invention is not limited to this, Each function of the remote monitoring apparatus 16, the state monitoring apparatus 18, the facility management apparatus 20, and the construction planning apparatus 22 is provided in one information processing apparatus. The one or more functions of the remote monitoring device 16, the state monitoring device 18, the facility management device 20, and the construction planning device 22 are provided in one information processing device. It may be in the form.

10: wind power generation system 12: wind power generation device
16: remote monitoring device 18: status monitoring device
20: facility management device 22: construction planning device
46: gearbox 54A, 54B: bearing
56: oil lubrication device 58A, 58B: vibration sensor
60: metal scan

Claims (5)

According to the time when a failure occurs in the corresponding part, which is predicted based on the time change of the detection signal output from the detection means for detecting the state of the part provided in the wind power generator, the construction of the replacement or repair due to the failure of the part is performed. Judging means for judging time to perform;
Storage means for storing construction stop information indicating a rate at which a wind speed at a location where the wind turbine generator is installed is equal to or larger than a predetermined threshold at which the construction of the parts cannot be performed, every predetermined number of days and every predetermined number of hours;
Selection means for selecting when to perform construction on the part based on the ratio indicated by the construction stop information stored in the storage means on the basis of the timing determined by the determination means;
Construction time selection device equipped with a.
The method of claim 1,
The said selecting means selects the construction plan from which the construction period computed based on the ratio represented by the said construction stop information is below a predetermined value among the several construction plans devised based on the time determined by the said determination means. doing
Construction time selector. 3. The method according to claim 1 or 2,
Computing means for calculating the cost required for each of the plurality of construction plans devised on the basis of the time determined by the determining means,
The said selecting means selects the construction plan from which the cost computed by the said calculation means becomes less than a predetermined value among a plurality of said construction plans.
Construction time selector.
The method of claim 3, wherein
The cost calculated by the calculating means includes the damages incurred by stopping the wind turbine.
Construction time selector.
According to the time when a failure occurs in the corresponding part, which is predicted based on the time change of the detection signal output from the detection means for detecting the state of the part provided in the wind power generator, the construction of the replacement or repair due to the failure of the part is performed. A first step of determining when to perform
On the basis of the time determined in the first step, the ratio at which the wind speed at the place where the wind power generator is installed is equal to or greater than a predetermined threshold at which the construction of the parts cannot be performed is performed every predetermined number of days and for a predetermined number of hours. 2nd process of selecting time to perform construction with respect to the said component based on the said ratio represented by construction stop information shown every time
Construction time selection method comprising a.

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